Canonical python-apt vulnerabilities

Latest Canonical python-apt CVEs

Newest publication first

1. CVE-2025-6966 Null-pointer dereference in python-apt TagSection.keys()

   Published 2025-12-05

   Medium·CVSS 6.9 EPSS 0.16%

   NULL pointer dereference in TagSection.keys() in python-apt on APT-based Linux systems allows a local attacker to cause a denial of service (process crash) via a crafted deb822 file with a malformed non-UTF-8 key.

2. CVE-2020-27351 Various memory and file descriptor leaks in apt-python

   Published 2020-12-10

   Low·CVSS 2.8 EPSS 0.40%

   Various memory and file descriptor leaks were found in apt-python files python/arfile.cc, python/tag.cc, python/tarfile.cc, aka GHSL-2020-170. This issue affects: python-apt 1.1.0beta1 versions prior to 1.1.0beta1ubuntu0.16.04.10; 1.6.5ubuntu0 versions prior to 1.6.5ubuntu0.4; 2....

3. CVE-2019-15795 python-apt uses MD5 for validation

   Published 2020-03-26

   Medium·CVSS 4.7 EPSS 0.45%

   python-apt only checks the MD5 sums of downloaded files in Version.fetch_binary() and Version.fetch_source() of apt/package.py in version 1.9.0ubuntu1 and earlier. This allows a man-in-the-middle attack which could potentially be used to install altered packages and has been fixe...

4. CVE-2019-15796 python-apt downloads from untrusted sources

   Published 2020-03-26

   Medium·CVSS 4.7 EPSS 0.51%

   Python-apt doesn't check if hashes are signed in Version.fetch_binary() and Version.fetch_source() of apt/package.py or in _fetch_archives() of apt/cache.py in version 1.9.3ubuntu2 and earlier. This allows downloads from unsigned repositories which shouldn't be allowed and has be...

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.